S
M
T
W
T
F
S
26
70°
45°
27
70°
46°
28
61°
45°
29
57°
41°
30
54°
36°
1
54°
36°
2
61°
32°
3
73°
48°
4
79°
43°
5
57°
37°
6
52°
30°
7
63°
32°
8
73°
37°
9
70°
43°
10
68°
36°
11
66°
36°
12
79°
50°
13
70°
45°
14
76°
55°
15
85°
60°
16
82°
62°
17
80°
66°
18
78°
52°
19
66°
46°
20
63°
45°
21
62°
47°
22
67°
50°
23
72°
53°
24
75°
56°
25
76°
56°
26
77°
57°
27
72°
52°
28
68°
54°
29
69°
52°
30
68°
52°
31
69°
53°
1
69°
50°
2
70°
51°
3
70°
59°
4
74°
62°
5
80°
62°
6
79°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Oelwein
Oelwein's May 2026 forecast shows daily high temperatures ranging from 62° to 85°, with overnight lows between 45° and 66°. The average high for May is 73° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Oelwein. See also: June | July | August.
